package ooday01;
/** 构造方法的演示 */
public class ConsDemo {
    public static void main(String[] args) {
        Student zs = new Student();//调用无参构造方法
        Student ls = new Student("张三",25);
        Student ww = new Student("王五",24,"jsd2302","001");
        zs.study();
        ls.sayHI();
        ww.sayHI();
    }
}
